The shape of Earth

[Anomalocaris]

I think you mean seeing things with your own eyes and refusing to doubt your own experiences when in-adequate evidence is presented to the contrary.

Again I ask, is it possible to observe a full moon at midnight?

you can observe the full moon at precisely mid night or any other moment of the night or all night long.  if fact, daycare level astronomy and geometry just most barely forever beyond your furthest comprehension will shout to your uncomprehending ears that the full moon is the only moon phase that is possible to observe anytime of the night between sun down and sun rise. any other moon phase will be unobservable some part of the night unless you can look down and see through what your dim wit and profound ignorance imagine to be a flat earth. 

now just get lost.  a dimwit like you with the knowledge and comprehension of a fossilized tree stump does not become worth talking to no matter how emphatic you try to speak or how rhetorical  you imagine your question to be.